Informative EPA Fact Sheets The United States Environmental Protection Agency (EPA) does an excellent job of assembling and posting...

Wastewater Standards These well-known and reliable wastewater standards have changed slowly over the years, getting updates as needed to...

Adenosine Triphosphate (ATP) Testing ATP testing is an advanced analysis for thoroughly evaluating a biological treatment system. Because...

Wastewater Temperature in the Bioreactor Operators know that when the temperature of the wastewater entering the bioreactor is too high,...

Activated Sludge Design Parameters This is a handy chart from the well-known Metcalf & Eddy handbook (Metcalf & Eddy. Wastewater...